JP2571581B2 - Rubber kneaded dough manufacturing method - Google Patents
Rubber kneaded dough manufacturing methodInfo
- Publication number
- JP2571581B2 JP2571581B2 JP62248667A JP24866787A JP2571581B2 JP 2571581 B2 JP2571581 B2 JP 2571581B2 JP 62248667 A JP62248667 A JP 62248667A JP 24866787 A JP24866787 A JP 24866787A JP 2571581 B2 JP2571581 B2 JP 2571581B2
- Authority
- JP
- Japan
- Prior art keywords
- raw
- polymer particles
- raw material
- polymer
- particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 title description 16
- 238000004519 manufacturing process Methods 0.000 title description 5
- 229920000642 polymer Polymers 0.000 claims description 61
- 239000002245 particle Substances 0.000 claims description 43
- 230000000181 anti-adherent effect Effects 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 14
- 238000004898 kneading Methods 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 8
- 238000010298 pulverizing process Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 description 26
- 239000000853 adhesive Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- WYFCZWSWFGJODV-MIANJLSGSA-N 4-[[(1s)-2-[(e)-3-[3-chloro-2-fluoro-6-(tetrazol-1-yl)phenyl]prop-2-enoyl]-5-(4-methyl-2-oxopiperazin-1-yl)-3,4-dihydro-1h-isoquinoline-1-carbonyl]amino]benzoic acid Chemical compound O=C1CN(C)CCN1C1=CC=CC2=C1CCN(C(=O)\C=C\C=1C(=CC=C(Cl)C=1F)N1N=NN=C1)[C@@H]2C(=O)NC1=CC=C(C(O)=O)C=C1 WYFCZWSWFGJODV-MIANJLSGSA-N 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はゴム練り生地を一回の練り工程で連続的に製
造する方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for continuously producing a rubber kneaded material in a single kneading step.
（従来の技術） 特殊なゴムを除き一般的なゴム練り生地の製造方法は
第３図に示すようなバンバリー方式によって行ってい
る。(Prior Art) Except for special rubber, a general method of manufacturing a rubber kneaded material is performed by a Banbury method as shown in FIG.
バンバリー方式は原料ポリマー50を所定寸法に截断
し、この原料ポリマー50に老化防止剤、加工助剤等の添
加剤51、オイル52及びカーボン53を配合して第１のミキ
サー54に投入し、ミキサー54にて原料ポリマー50と前記
添加剤51等を混練してシート状プレコンパウンド55と
し、このプレコンパウンド55をカッター56で細かく切断
した後、切断片57をコンベア58で搬送する間に冷却し、
再び切断片57を第２のミキサー59にて加硫剤を添加する
とともに発熱を抑えて混練し、次いで押出し成形機60に
よりシート状に押出すようにしたものである。In the Banbury method, the raw material polymer 50 is cut into a predetermined size, and the raw material polymer 50 is mixed with additives 51 such as an antioxidant, a processing aid, oil 52 and carbon 53, and is charged into a first mixer 54. At 54, the raw polymer 50 and the additive 51 and the like are kneaded to form a sheet-shaped pre-compound 55, and the pre-compound 55 is finely cut by a cutter 56, and then cooled while the cut piece 57 is conveyed by a conveyor 58,
The cut piece 57 is again kneaded with the addition of a vulcanizing agent in the second mixer 59 while suppressing heat generation, and then extruded into a sheet by an extruder 60.
（発明が解決しようとする問題点） 上述したように従来にあってはゴム練り生成を連続的
に製造するには、２台のミキサーを用いて２回混練を行
っており、設備が大がかりとなり作業時間も長くなる。
そこで１回の混練でゴム練り生地を作ることも考えられ
るが、この場合には混練による発熱を抑えないと加硫反
応が起ってしまう。そして発熱を抑えるには原料ポリマ
ーを小径（10mm以下）の粒子に粉砕した状態で行わなけ
ればならないが、粉砕された原料ポリマーは再び互いに
吸着して塊状（ブロッキング）となる性質があり、発熱
を抑えるのは困難である。(Problems to be Solved by the Invention) As described above, conventionally, in order to continuously produce rubber kneading, kneading is performed twice using two mixers, and the equipment becomes large. Work time is also longer.
Therefore, it is conceivable to produce a rubber kneaded material by one kneading, but in this case, a vulcanization reaction occurs unless heat generated by kneading is suppressed. In order to suppress heat generation, the raw material polymer must be pulverized into small-diameter (10 mm or less) particles. However, the pulverized raw material polymers have the property of adsorbing each other again and forming a block (blocking). It is difficult to control.
そこで特開昭52−69481号に開示されるようなブロッ
キングを防止する装置を用いることも考えられる。この
装置は粉砕された原料ポリマーを貯蔵するドラムを回転
自在とするとともにドラム内にかき揚げ板を設け、常時
原料ポリマーを掻き混ぜて吸着しないようにしたもので
ある。Therefore, it is conceivable to use a device for preventing blocking as disclosed in JP-A-52-69481. In this apparatus, the drum for storing the pulverized raw polymer is rotatable and a frying plate is provided in the drum so that the raw polymer is constantly stirred so as not to be adsorbed.
しかしながら斯る装置を用いることは結局装置が１つ
増加することであり、設備的にはミキサーを２台用いる
ことと大差はない。However, using such a device eventually increases the number of devices by one, and there is no great difference in terms of equipment from using two mixers.
（問題点を解決するための手段） 上記問題点を解決すべく本発明は、原料ポリマーを10
mmを越えない粒径の粒子に粉砕しつつ、この原料ポリマ
ー粒子に防着剤を含んだ空気を吹き付けて原料ポリマー
粒市の表面を防着剤でコーティングする工程と、防着処
理がなされた原料ポリマー粒子に添加剤を添加する工程
と、添加剤を付した原料ポリマー粒子を混練する工程と
からなることを特徴とするゴム練り生地製造方法であ
る。(Means for Solving the Problems) In order to solve the above problems, the present invention relates to a method for preparing a raw material polymer by 10
A process of spraying air containing an anti-adhesive agent onto the raw polymer particles and coating the surface of the raw polymer particles with the anti-adhesive agent while pulverizing the raw polymer particles into particles having a particle size not exceeding mm was performed. A method for producing a kneaded rubber dough, comprising a step of adding an additive to raw material polymer particles and a step of kneading the raw material polymer particles to which the additive has been added.
（作用） 粉砕された原料ポリマー粒子に防着剤を含んだ空気を
吹き付けて原料ポリマー粒子の表面を防着剤でコーティ
ングするので、原料ポリマー粒子同士がブロッキングす
ること（塊になること）はない。この結果、防着処理が
なされた原料ポリマー粒子に添加剤を添加し、添加剤を
付した原料ポリマー粒子を混練するというように、ゴム
練り生地を１回の練り工程で連続製造することが可能と
なる。(Action) Since the air containing the anti-adhesive agent is sprayed on the pulverized raw polymer particles to coat the surface of the raw polymer particles with the anti-adhesive agent, the raw polymer particles do not block (agglomerate) each other. . As a result, a rubber kneaded material can be continuously manufactured in one kneading step, such as adding an additive to the raw polymer particles subjected to the anti-adhesion treatment and kneading the raw polymer particles with the additive. Becomes
また、原料ポリマー粒子に防着剤を含んだ空気を吹き
付けることにより、粒子の表面を防着剤でコーティング
するので、少量の防着剤で満遍なくコーティングするこ
とができる。In addition, since the surface of the particles is coated with the anti-adhesive by spraying air containing the anti-adhesive onto the raw polymer particles, it is possible to coat evenly with a small amount of the anti-adhesive.
更に、原料ポリマーを粉砕しつつ、原料ポリマー粒子
に防着剤を含んだ空気を吹き付けるので、粉砕途中の原
料ポリマーの表面が常に防着剤でコーティングされるこ
とになる。このため、粉砕途中の原料ポリマー同士がブ
ロッキングすることはない。しかも、粉砕途中の原料ポ
リマーに空気に吹き付けるので、粉砕中に生じた熱を吹
き付け空気で冷却することができる。Furthermore, since the air containing the anti-adhesive agent is blown to the raw polymer particles while the raw polymer is being pulverized, the surface of the raw polymer being pulverized is always coated with the anti-adhesive agent. For this reason, the raw material polymers during the pulverization do not block each other. In addition, since the raw material polymer during the pulverization is blown to the air, the heat generated during the pulverization can be cooled by the blown air.
（実施例） 以下に本発明の実施例を添付図面に基づいて説明す
る。(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.
第１図は本発明方法の実施に用いるゴム練り生地製造
装置の概略構成図であり、製造装置は原料ポリマー１の
所定寸法に截断して供給するポリマー供給装置２、ポリ
マーを小径粒子に粉砕する粉砕機３、カーボン供給装置
４、加硫剤、加工助剤、老化防止剤等の添加剤を供給す
る添加剤供給装置５、オイル供給装置６、自動しつつ公
転するスクリュー７を備えたブレンダー８、ブレンダー
８にて混合された原料を混練してシート状に押出す混練
機９及びシート状に押し出されたゴム練り生地10を搬送
するローラ11から構成される。FIG. 1 is a schematic structural view of a rubber kneaded dough manufacturing apparatus used for carrying out the method of the present invention. Crusher 3, Carbon supply device 4, Additive supply device 5 for supplying additives such as vulcanizing agent, processing aid, antioxidant, etc., Oil supply device 6, Blender 8 equipped with screw 7 which revolves automatically and revolves. And a kneader 9 for kneading the raw materials mixed in the blender 8 and extruding them in a sheet shape, and a roller 11 for conveying a rubber kneaded material 10 extruded in a sheet shape.
特に粉砕機３については第２図に示すように原料ポリ
マー１が投入されるホッパー30内に所定径以下の原料ポ
リマー粒子のみを通過させるスクリーン31を設け、この
スクリー31の上方に回転刃32を配設し、ホッパー30側壁
に該回転刃32との間で原料ポリマー１を破砕する固定刃
33を取付け、更にポッパー30の天井部には破砕された原
料ポリマー粒子表面に防着剤を含んだ空気を吹付けるノ
ズル34を設けている。In particular, as for the crusher 3, as shown in FIG. 2, a screen 31 for passing only the raw material polymer particles having a predetermined diameter or less is provided in a hopper 30 into which the raw material polymer 1 is charged, and a rotary blade 32 is provided above the screen 31. A fixed blade disposed on the side wall of the hopper 30 to crush the raw polymer 1 between the rotary blade 32 and the fixed blade
A nozzle 34 is provided on the ceiling of the popper 30 for blowing air containing an anti-adhesive onto the surface of the crushed raw polymer particles.
すなわち、第２図から明らかなように、ホッパー30内
で、原料ポリマー１はスクリーン31を通過可能な大きさ
になるまで粉砕される。そして、粉砕された粒子から順
にスクリーン31を通過する。そのため、粉砕機３におい
て、スクリーン31を通過する前の粒子に、防着剤を含ん
だ空気を吹き付ける必要がある。具体的には、第２図に
示すように粉砕機３において、原料ポリマー１を粒子に
粉砕しつつ、この原料ポリマー粒子の表面に、防着剤を
含んだ空気をノズル34から吹き付けて、原料ポリマー粒
子の表面を防着剤でコーティングすることになる。尚、
ノズル34についてはホッパー30の側壁等で設けてもよ
い。That is, as is apparent from FIG. 2, the raw material polymer 1 is pulverized in the hopper 30 until the raw material polymer 1 becomes large enough to pass through the screen 31. Then, the crushed particles pass through the screen 31 in order. Therefore, in the crusher 3, it is necessary to blow air containing an anti-adhesive onto the particles before passing through the screen 31. Specifically, as shown in FIG. 2, while the raw material polymer 1 is pulverized into particles in a pulverizer 3, air containing an anti-adhesive agent is blown from the nozzle 34 onto the surface of the raw material polymer particles. The surface of the polymer particles will be coated with an anti-adhesive. still,
The nozzle 34 may be provided on the side wall of the hopper 30 or the like.
以上の如き構成からなる装置によってゴム練り生地を
連続的に製造する方法を以下に述べる。A method for continuously producing a rubber kneaded material using the apparatus having the above-described configuration will be described below.
先ず原料ポリマー１を適当な大きさ截断する。原料ポ
リマー１としてはIR、NR、SBR、BR、EPDM、IIR、NBR、C
R、CSM、ACM、CHC、FKM、Ｕ等各種原料を用いることが
できる。First, the raw material polymer 1 is cut into a suitable size. Raw polymer 1 includes IR, NR, SBR, BR, EPDM, IIR, NBR, C
Various raw materials such as R, CSM, ACM, CHC, FKM, and U can be used.
そして適当な大きさとなった原料ポリマー１を粉砕機
３をホッパー30内に投入し、回転刃32と固定刃33によっ
て直径10mm以下の原料ポリマー粒子に粉砕し、この原料
ポリマー粒子表面に防着剤をコーティングする。コーテ
ィングの方法としては、ホッパー30内を正圧状態とし、
前記ノズル34から防着剤を含んだ空気を原料ポリマー粒
子に吹き付けることで行う。尚、粉砕した原料ポリマー
粒子は自重によってスクリーンを通過するようにし、減
圧吸引は行わない。仮りに減圧吸引することで原料ポリ
マー粒子をしてスクリーン31を通過せしめるようにする
と、原料ポリマー粒子よりも先に防着剤が吸引され、原
料ポリマー粒子の表面に防着剤が効率よく付着しないこ
ととなる。これに対し本発明のよう正圧状態において防
着剤を含む空気を吹き付けるようにすれば、防着剤を無
駄なく付着させることができる。具体的には原料ポリマ
ー１に対し1wt％以下の防着剤を使用するだけで足り
る。Then, the raw material polymer 1 having an appropriate size is charged into the hopper 30 by the crusher 3 and crushed into raw polymer particles having a diameter of 10 mm or less by the rotary blade 32 and the fixed blade 33. Coating. As a method of coating, the inside of the hopper 30 is in a positive pressure state,
This is performed by blowing air containing an anti-adhesive agent from the nozzle 34 onto the raw polymer particles. The pulverized raw polymer particles are allowed to pass through the screen by their own weight, and vacuum suction is not performed. If the raw polymer particles are made to pass through the screen 31 by suction under reduced pressure, the anti-adhesive is sucked before the raw polymer particles, and the anti-adhesive does not efficiently adhere to the surface of the raw polymer particles. It will be. On the other hand, if the air containing the anti-adhesive agent is blown in the positive pressure state as in the present invention, the anti-adhesive agent can be attached without waste. Specifically, it suffices to use only 1 wt% or less of the anti-adhesive agent for the raw material polymer 1.
以上の如くして原料ポリマーを粉砕して直径10m以下
の防着処理がなされた原料ポリマー粒子を得たならば、
所定時間以内（例えば24時間以内）に原料ポリマー粒子
とカーボン、オイル及び加硫剤を含む添加剤をブレンダ
ー８内に入れて混合し、これを混練機９でもって練り合
せ、シート状のゴム練り生地10として押出す。As described above, if the raw polymer was pulverized to obtain raw polymer particles subjected to anti-deposition treatment with a diameter of 10 m or less,
Within a predetermined time (for example, within 24 hours), the raw material polymer particles and additives including carbon, oil and vulcanizing agent are put into a blender 8 and mixed, and the resulting mixture is kneaded by a kneader 9 to form a sheet-like rubber kneading. Extrude as dough 10.
尚、図示例にあっては、原料ポリマー粒子に正圧状態
で防着剤を吹き付けるようにしたが、ある程度ブロッキ
ングにくい材料については、防着剤の付着工程を省略
し、直ちにカーボン等を原料ポリマー粒子表面に付着さ
せることでブロッキングを防止すようにしてもよい。In the illustrated example, an anti-adhesive agent was sprayed on the raw polymer particles under a positive pressure. However, for a material that is difficult to block to some extent, the step of attaching the anti-adhesive agent was omitted, and carbon or the like was immediately replaced with the raw material polymer. Blocking may be prevented by attaching to the particle surface.
（発明の効果） 以上に説明した如く本発明によれば、均質なゴム練り
生地を１回の練り工程で連続的に製造することができ
る。また少量（例えば2kg）から多量（例えば10ton）ま
で任意のロットサイズのゴム練り生地を同一工程で製造
することができ、生産性が大幅に向上する。(Effects of the Invention) As described above, according to the present invention, a homogeneous rubber kneaded material can be continuously manufactured in one kneading process. Also, rubber dough of any lot size from a small amount (for example, 2 kg) to a large amount (for example, 10 ton) can be manufactured in the same process, and productivity is greatly improved.
また、原料ポリマー粒子に防着剤を含んだ空気を吹き
付けることにより、粒子の表面を防着剤でコーティング
するので、少量の防着剤で満遍なくコーティングするこ
とができる。このため、防着剤の使用量が少なくてす
み、また、原料ポリマー粒子がブロッキングすることを
確実に防止できる。In addition, since the surface of the particles is coated with the anti-adhesive by spraying air containing the anti-adhesive onto the raw polymer particles, it is possible to coat evenly with a small amount of the anti-adhesive. For this reason, the amount of the anti-adhesive agent can be reduced, and the blocking of the raw material polymer particles can be reliably prevented.
更に、原料ポリマーを粉砕しつつ、原料ポリマー粒子
に防着剤を含んだ空気を吹き付けるので、粉砕途中の原
料ポリマーの表面が常に防着剤でコーティングされるこ
とになる。このため、粉砕途中の原料ポリマー同士がブ
ロッキングすることがないので、粉砕効率が高まり。し
かも、粉砕途中の原料ポリマーに空気を吹き付けるの
で、粉砕中に生じた熱を吹き付け空気で冷却することが
でき、その結果、粉砕効率がより一層高まる。Furthermore, since the air containing the anti-adhesive agent is blown to the raw polymer particles while the raw polymer is being pulverized, the surface of the raw polymer being pulverized is always coated with the anti-adhesive agent. For this reason, since the raw material polymers during the pulverization do not block each other, the pulverization efficiency is increased. In addition, since air is blown to the raw material polymer during the grinding, the heat generated during the grinding can be cooled by the blowing air, and as a result, the grinding efficiency is further improved.
第１図は本発明方法の実施に用いるゴム練り生地製造装
置の概略図、第２図は粉砕機の要部断面図、第３図は従
来方法に実施に使用する製造装置の概略図である。 尚、図面中１は原料ポリマー、３は粉砕機、４はカーボ
ン供給装置、５はオイル供給装置、８はブレンダー、９
は混練機、10はゴム練り生地である。FIG. 1 is a schematic view of a rubber kneaded dough manufacturing apparatus used for carrying out the method of the present invention, FIG. 2 is a sectional view of a main part of a crusher, and FIG. . In the drawings, 1 is a raw material polymer, 3 is a pulverizer, 4 is a carbon supply device, 5 is an oil supply device, 8 is a blender, 9
Is a kneading machine and 10 is a kneaded rubber dough.
Claims (1)
に粉砕しつつ、この原料ポリマー粒子に防着剤を含んだ
空気を吹き付けて原理ポリマー粒子の表面を防着剤でコ
ーティングすると工程と、防着処理がなされた原料ポリ
マー粒子に添加剤を添加する工程と、添加剤を付した原
料ポリマー粒子を混練する工程とからなることを特徴と
するゴム練り生地製造方法。1. A method of coating a surface of a polymer particle with an anti-adhesive by blowing air containing an anti-adhesive onto the raw polymer particles while pulverizing the raw polymer into particles having a particle size not exceeding 10 mm. A process of adding an additive to the raw polymer particles subjected to the anti-adhesion treatment, and a process of kneading the raw polymer particles with the additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248667A JP2571581B2 (en) | 1987-10-01 | 1987-10-01 | Rubber kneaded dough manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248667A JP2571581B2 (en) | 1987-10-01 | 1987-10-01 | Rubber kneaded dough manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6490227A JPS6490227A (en) | 1989-04-06 |
| JP2571581B2 true JP2571581B2 (en) | 1997-01-16 |
Family
ID=17181545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62248667A Expired - Lifetime JP2571581B2 (en) | 1987-10-01 | 1987-10-01 | Rubber kneaded dough manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2571581B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006080028A1 (en) * | 2005-01-28 | 2006-08-03 | Dennis K J | A method of embossing design over pvc, latex or rubber backed brush mats or polypropylene mats in a dual temperature press |
| CA3107048C (en) * | 2018-08-03 | 2023-06-13 | Dressler Group GmbH & Co. KG | Method and device for comminuting a plastic and for producing pulverulent material from this plastic |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4847934A (en) * | 1971-10-21 | 1973-07-07 | ||
| AU508463B2 (en) * | 1975-07-03 | 1980-03-20 | Bayer Aktiengesellschaft and C-unter Papenmeier KG | Pulverulent rubber mixture |
| JPS6049566B2 (en) * | 1982-07-27 | 1985-11-02 | 住友ゴム工業株式会社 | Automatic mixing system for pelleted rubber |
| JPS61118426A (en) * | 1984-11-13 | 1986-06-05 | Shinko Sangyo:Kk | Production of rubber thread |
| JPS61229510A (en) * | 1985-04-05 | 1986-10-13 | Toyo Soda Mfg Co Ltd | Manufacture of rubber-inorganic fiber composition |
| JPS61263710A (en) * | 1985-05-17 | 1986-11-21 | Tokai Rubber Ind Ltd | Processing of natural rubber |
| JPS61263709A (en) * | 1985-05-17 | 1986-11-21 | Tokai Rubber Ind Ltd | Processing of natural rubber |
-
1987
- 1987-10-01 JP JP62248667A patent/JP2571581B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6490227A (en) | 1989-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1419044A1 (en) | Process and apparatus for continuously producing an elastomeric composition | |
| WO2021054564A1 (en) | Fine-cutting apparatus for super absorbent polymer hydrogel | |
| RU2304511C2 (en) | Method and device for continuous producing of elastomeric composition | |
| WO2000021674A1 (en) | Disintegrating and grain-regulating device for granules | |
| JP2571581B2 (en) | Rubber kneaded dough manufacturing method | |
| CN113399078B (en) | Pig feed smashes screening integrated processing equipment | |
| CN211762749U (en) | Double-screw granulation device for production of modified color masterbatch | |
| CN104910525A (en) | Rubber accelerator TMTM predispersion master batch and preparation method thereof | |
| JP2524366B2 (en) | Rubber kneaded dough manufacturing method with low volatile content | |
| JPS6054974B2 (en) | Manufacturing method of rubber carbon master batch | |
| CN207562976U (en) | A kind of electronic product recycling reducing mechanism | |
| JP2006346942A (en) | Resin powder treatment apparatus and resin powder treatment method | |
| CN205799920U (en) | A kind of mill | |
| CN212072520U (en) | Full-automatic production line for flame retardant materials | |
| CN204644248U (en) | The continuous automatic manufacturing device of a kind of thermoplastic powder coating | |
| CN1695589A (en) | Preparation method of stable micronized pharmaceutical additive | |
| CN216573262U (en) | Prevent environmental protection fire retardant apparatus for producing of leakage | |
| JP2017185710A (en) | Method for producing polymer granules | |
| CN212819762U (en) | Powder feeding device for laser cladding | |
| JP4287732B2 (en) | Powder and granulator | |
| CN216172888U (en) | Even phosphogypsum mixing feeder | |
| CN218167217U (en) | Device for controlling particle size of grinding powder through variable frequency | |
| CN221772432U (en) | A kind of solid aluminum sulfate pulverizing equipment | |
| JPS62171744A (en) | Granulator for sludge cake | |
| CN215197511U (en) | Powdery grinding aid matching and feeding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |